DENTON (UNT), Texas -- The public can compete for prizes in the latest version of an online gaming competition that's helping University of North Texas researchers improve the efficiency of the next generation of electronic gadgets, such as smartphones and medical devices. The competition for UNTANGLED II: Unbound runs Aug. 21 (Thursday) to Sept. 10, and 20 gift cards will be awarded to the overall best players. The game can be accessed at the Untangled website.